use NetAddr::IP::Lite;
 
$| = 1;
 
my @deltas = (0, 1, 2, 3, 255);
 
print "1..", 15 + @deltas, "\n";
 
my $count = 1;
 
for (my $ip = new NetAddr::IP::Lite '10.0.0.1/28';
     $ip < $ip->broadcast;
     $ip ++)
{
    my $o = $ip->addr;
 
    $o =~ s/^.+\.(\d+)$/$1/;
 
    if ($o == $count) {
	print "ok $count\n";
    }
    else {
	print "not ok $count\n";
    }
 
    ++ $count;
}
 
my $ip = new NetAddr::IP::Lite '10.0.0.255/24';
$ip ++;
 
if ($ip eq '10.0.0.0/24') {
    print "ok $count\n";
}
else {
    print "not ok $count\n";
}
 
++$count;
 
$ip = new NetAddr::IP::Lite '10.0.0.0/24';
 
for my $v (@deltas) {
    if ($ip + $v eq '10.0.0.' . $v . '/24') {
	print "ok $count\n";
    }
    else {
	print "not ok $count\n";
    }
    ++ $count;
}